Went to a Hull cemetery where my greatgrandparents are buried, no trace of their grave, although I was told where it was, they have taken the white marble surrounds from old graves and used them to edge the paths, to make grass-cutting easier I think. I hope they did try to contact relatives first but it must be a difficult job as Trish pointed out, once people have moved away or died.
The only trouble is they've turned the stones round so that any inscriptions cannot be read. Good job I have an old postcard photograph of the grave, which my grandmother kept!
Barbara